There’s several ways to do it. Taking a 20 or 90 minute nap mid day is common, it can also mean waking up for a few hours in the night. I’d say usually when people say biphasic they are referring to the later but yes, a nap and a long sleep is also biphasic.
There’s several ways to do it. Taking a 20 or 90 minute nap mid day is common, it can also mean waking up for a few hours in the night. I’d say usually when people say biphasic they are referring to the later but yes, a nap and a long sleep is also biphasic.
Fair enough. I did know someone that used to follow a polyphasic sleep schedule that would have him up sometimes twice a night.